/*
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

#pragma once

#include <memory>
#include <string>

#include <cxxreact/NativeModule.h>
#include <folly/dynamic.h>
#include <jsinspector-modern/InspectorInterfaces.h>
#include <jsinspector-modern/ReactCdp.h>
#include <react/timing/primitives.h>

#ifndef RN_EXPORT
#define RN_EXPORT __attribute__((visibility("default")))
#endif

namespace facebook::react {

class JSBigString;
class JSExecutor;
class JSModulesUnbundle;
class MessageQueueThread;
class ModuleRegistry;
class RAMBundleRegistry;

// This interface describes the delegate interface required by
// Executor implementations to call from JS into native code.
class [[deprecated("This API will be removed along with the legacy architecture.")]] ExecutorDelegate {
 public:
  virtual ~ExecutorDelegate() = default;

  virtual std::shared_ptr<ModuleRegistry> getModuleRegistry() = 0;

  virtual void callNativeModules(JSExecutor &executor, folly::dynamic &&calls, bool isEndOfBatch) = 0;
  virtual MethodCallResult callSerializableNativeHook(
      JSExecutor &executor,
      unsigned int moduleId,
      unsigned int methodId,
      folly::dynamic &&args) = 0;
};

class [[deprecated("This API will be removed along with the legacy architecture.")]] JSExecutorFactory {
 public:
  virtual std::unique_ptr<JSExecutor> createJSExecutor(
      std::shared_ptr<ExecutorDelegate> delegate,
      std::shared_ptr<MessageQueueThread> jsQueue) = 0;
  virtual ~JSExecutorFactory() = default;
};

class RN_EXPORT [[deprecated("This API will be removed along with the legacy architecture.")]] JSExecutor {
 public:
  /**
   * Prepares the JS runtime for React Native by installing global variables.
   * Called once before any JS is evaluated.
   */
  virtual void initializeRuntime() = 0;
  /**
   * Execute an application script bundle in the JS context.
   */
  virtual void loadBundle(std::unique_ptr<const JSBigString> script, std::string sourceURL) = 0;

#ifndef RCT_REMOVE_LEGACY_ARCH
  /**
   * Add an application "RAM" bundle registry
   */
  virtual void setBundleRegistry(std::unique_ptr<RAMBundleRegistry> bundleRegistry) = 0;
#endif // RCT_REMOVE_LEGACY_ARCH

  /**
   * Register a file path for an additional "RAM" bundle
   */
  virtual void registerBundle(uint32_t bundleId, const std::string &bundlePath) = 0;

  /**
   * Executes BatchedBridge.callFunctionReturnFlushedQueue with the module ID,
   * method ID and optional additional arguments in JS. The executor is
   * responsible for using Bridge->callNativeModules to invoke any necessary
   * native modules methods.
   */
  virtual void
  callFunction(const std::string &moduleId, const std::string &methodId, const folly::dynamic &arguments) = 0;

  /**
   * Executes BatchedBridge.invokeCallbackAndReturnFlushedQueue with the cbID,
   * and optional additional arguments in JS and returns the next queue. The
   * executor is responsible for using Bridge->callNativeModules to invoke any
   * necessary native modules methods.
   */
  virtual void invokeCallback(double callbackId, const folly::dynamic &arguments) = 0;

  virtual void setGlobalVariable(std::string propName, std::unique_ptr<const JSBigString> jsonValue) = 0;

  virtual void *getJavaScriptContext()
  {
    return nullptr;
  }

  /**
   * Returns whether or not the underlying executor supports debugging via the
   * Chrome remote debugging protocol. If true, the executor should also
   * override the \c createAgentDelegate method.
   */
  virtual bool isInspectable()
  {
    return false;
  }

  /**
   * The description is displayed in the dev menu, if there is one in
   * this build.  There is a default, but if this method returns a
   * non-empty string, it will be used instead.
   */
  virtual std::string getDescription() = 0;

  virtual void handleMemoryPressure([[maybe_unused]] int pressureLevel) {}

  virtual void destroy() {}
  virtual ~JSExecutor() = default;

  virtual void flush() {}

  static std::string getSyntheticBundlePath(uint32_t bundleId, const std::string &bundlePath);

  /**
   * Get a reference to the \c RuntimeTargetDelegate owned (or implemented) by
   * this executor. This reference must remain valid for the duration of the
   * executor's lifetime.
   */
  virtual jsinspector_modern::RuntimeTargetDelegate &getRuntimeTargetDelegate();

 private:
  /**
   * Initialized by \c getRuntimeTargetDelegate if not overridden, and then
   * never changes.
   */
  std::optional<jsinspector_modern::FallbackRuntimeTargetDelegate> runtimeTargetDelegate_;
};

} // namespace facebook::react
